131021310144 has 28 divisors (see below), whose sum is σ = 346660550264. Its totient is φ = 43673769984.

The previous prime is 131021310143. The next prime is 131021310179. The reversal of 131021310144 is 441013120131.

It is a self number, because there is not a number n which added to its sum of digits gives 131021310144.

It is not an unprimeable number, because it can be changed into a prime (131021310143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341201137 + ... + 341201520.

It is an arithmetic number, because the mean of its divisors is an integer number (12380733938).

Almost surely, 2^131021310144 is an apocalyptic number.

It is an amenable number.

131021310144 is an abundant number, since it is smaller than the sum of its proper divisors (215639240120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131021310144 is an equidigital number, since it uses as much as digits as its factorization.

131021310144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682402672 (or 682402662 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 131021310144 its reverse (441013120131), we get a palindrome (572034430275).

The spelling of 131021310144 in words is "one hundred thirty-one billion, twenty-one million, three hundred ten thousand, one hundred forty-four".